Refrigerator and control method thereof

Abstract

The application discloses a refrigerator and a control method thereof, which comprises the following steps: obtaining a current first set temperature parameter and a current second set temperature parameter, and determining a current damper opening degree adjustment mode based on a preset relationship among the first set temperature parameter, the second set temperature parameter and a damper opening degree adjustment mode; wherein the current first set temperature parameter is a current set temperature parameter of a first compartment, and the current second set temperature parameter is a current set temperature parameter of a second compartment; and adjusting the opening degree of an adjustable air outlet by an air volume control mechanism according to the current damper opening degree adjustment mode. The refrigerator and the control method thereof can adjust the opening degree of the air outlet of one compartment according to the current set temperature of two compartments of the refrigerator, so that the refrigeration efficiency of different compartments under different refrigeration requirements is balanced, and the application range is wide.

Description

Technical Field

[0001] This invention relates to the field of refrigerator technology, and more particularly to a refrigerator and its control method. Background Technology

[0002] As people's living standards improve, their requirements for refrigerator performance are getting higher and higher. Different foods have different optimal storage temperatures. In order to meet people's food storage needs, refrigerators are set up with multiple compartments with different storage temperatures.

[0003] In the existing technology, in order to make the cooling efficiency of each compartment relatively balanced, the refrigerator is often manufactured with a fixed opening of the air outlet for each compartment according to the cooling needs of each compartment. However, when the cooling needs of each compartment change, this method cannot take into account the cooling efficiency of each compartment, and the cooling balance is broken. Summary of the Invention

[0004] The purpose of this invention is to provide a refrigerator and its control method, which can adjust the air outlet opening of one of the two compartments according to the current set temperature of the two compartments of the refrigerator, so as to keep the cooling efficiency of different compartments balanced under different cooling requirements, and has a wide range of applications.

[0005] To achieve the above objectives, embodiments of the present invention provide a refrigerator, comprising: The enclosure has internal compartments, including at least a first compartment and a second compartment. The door is located at the opening of the room; A refrigeration system is used to provide cooling to the room; An adjustable air outlet is provided on the first compartment to deliver the cooling energy into the first compartment; Air volume control mechanism, used to adjust the opening of the air outlet; Controller, used for: Obtain the current first set temperature parameter and the current second set temperature parameter; wherein, the current first set temperature parameter is the current set temperature parameter of the first room, and the current second set temperature parameter is the current set temperature parameter of the second room; Based on the relationship between the preset first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method, the current damper opening adjustment method is determined according to the current first set temperature parameter and the current second set temperature parameter; The air volume control mechanism adjusts the opening of the adjustable air outlet according to the current damper opening adjustment method.

[0006] As an improvement to the above scheme, the first room is a freezer room, the second room is a variable temperature room, and the freezer room and the variable temperature room share a refrigeration system.

[0007] As an improvement to the above solution, the refrigerator also includes a temperature sensor located in the freezer compartment for detecting the real-time freezing temperature of the freezer compartment; The step of controlling the air volume control mechanism to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method includes: When the refrigerator is powered on for the first time, the opening of the adjustable air outlet is controlled to the preset maximum opening. When the real-time freezing temperature is less than or equal to the preset maximum freezing value, the air volume control mechanism is controlled to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method.

[0008] As an improvement to the above solution, the air volume control mechanism includes a stepper motor, a drive gear, and a damper. The stepper motor is used to drive the drive gear to rotate, thereby moving the damper baffle. The damper is located at the adjustable air outlet and is configured to move controllably between the position of opening the adjustable air outlet and the position of closing the adjustable air outlet in order to adjust the opening degree of the air outlet.

[0009] As an improvement to the above scheme, the first compartment is a freezer compartment and the second compartment is a variable temperature compartment; the relationship between the first set temperature parameter, the second set temperature parameter and the damper opening adjustment method is specifically the relationship between the freezer set temperature parameter, the variable temperature set temperature parameter and the rotation angle of the damper baffle; wherein, the freezer set temperature parameter and the variable temperature set temperature parameter are independent variables, the rotation angle of the damper baffle is the dependent variable, and the rotation angle of the damper baffle is negatively correlated with the air outlet opening.

[0010] As an improvement to the above solution, the controller is also used for: Establish basic principles and, based on these principles, set the relationship between the freezing set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper; the basic principles include: When the set temperature corresponding to the freezing set temperature parameter decreases, the rotation angle of the damper gradually decreases. When the set temperature corresponding to the variable temperature setting parameter decreases, the rotation angle of the damper gradually increases. Upon initial power-on, the initial value of the rotation angle of the damper is a preset minimum angle; when the set temperature corresponding to the freezing set temperature parameter is a preset minimum freezing value, the rotation angle of the damper is the preset minimum angle. When the set temperature corresponding to the variable temperature setting parameter is the preset minimum variable temperature value and the set temperature corresponding to the freezing setting parameter is the preset maximum freezing value, the initial value of the rotation angle of the damper is the preset maximum angle.

[0011] To achieve the above objectives, embodiments of the present invention provide a refrigerator control method, comprising: Obtain the current first set temperature parameter and the current second set temperature parameter; wherein, the current first set temperature parameter is the current set temperature parameter of the first compartment of the refrigerator, and the current second set temperature parameter is the current set temperature parameter of the second compartment of the refrigerator; Based on the relationship between the preset first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method, the current damper opening adjustment method is determined according to the current first set temperature parameter and the current second set temperature parameter; According to the current damper opening adjustment method, the air volume control mechanism adjusts the opening of the adjustable air outlet of the first chamber.

[0012] As an improvement to the above scheme, the first room is a freezer room, the second room is a variable temperature room, and the freezer room and the variable temperature room share a refrigeration system.

[0013] Compared to existing technologies, the refrigerator and its control method disclosed in this invention obtain a current first set temperature parameter and a current second set temperature parameter, and determine the current damper opening adjustment method based on the preset relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method. The current first set temperature parameter is the current set temperature parameter of the first compartment, and the current second set temperature parameter is the current set temperature parameter of the second compartment. The airflow control mechanism adjusts the opening of the adjustable air outlet according to the current damper opening adjustment method. Therefore, the refrigerator and its control method of this invention can adjust the air outlet opening of one compartment based on the current set temperature of both compartments, thus maintaining a balanced cooling efficiency for different compartments under different cooling demands, and has a wide range of applications. Attached Figure Description

[0014] Figure 1 This is a perspective view of the refrigerator provided in an embodiment of the present invention; Figure 2 This is a perspective view of the refrigerator provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the refrigeration system provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the freezing channel provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the air volume control mechanism provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the air volume control mechanism provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the refrigerant flow direction during refrigeration provided in an embodiment of the present invention; Figure 8 This is a first working flowchart of the controller provided in an embodiment of the present invention; Figure 9 This is a second workflow diagram of the controller provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the communication system provided in an embodiment of the present invention; Figure 11 This is a flowchart of a refrigerator control method provided in an embodiment of the present invention.

[0015] Among them, 100 is the cabinet, 200 is the door; 1 is the compressor, 2 is the condenser, 3 is the anti-condensation pipe, 4 is the dryer filter, 5 is the pressure reducer, 6 is the evaporator, 7 is the gas-liquid separator; 110 is the freezer compartment, 120 is the variable temperature compartment, 111 is the inner wall, 112 is the adjustable air outlet, 113 is the temperature sensor, 121 is the variable temperature air outlet, 1121 is the stepper motor, 1122 is the drive gear, 1123 is the damper; 130 is the freezer aisle; 10 is the client, 20 is the router, 30 is the cloud server, and 40 is the refrigerator. Detailed Implementation

[0016] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0017] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] See Figure 1 and Figure 2 , Figure 1 and Figure 2 This is a perspective view of a refrigerator provided in an embodiment of the present invention. The refrigerator in this embodiment has an approximately cuboid shape and includes a cabinet 100 defining a storage space and multiple doors 200 disposed at the opening of the cabinet 100. Each door 200 includes a door shell located outside the cabinet 100, a door inner liner located inside the cabinet 100, an upper end cover, a lower end cover, and an insulation layer located between the door shell, door inner liner, upper end cover, and lower end cover; typically, the insulation layer is filled with foam material. The cabinet 100 has chambers, including component storage chambers for placing refrigerator components, such as a compressor, and storage spaces (compartments) for storing food, medicine, etc. Each compartment corresponds to one or more doors. The doors can be pivotally disposed at the opening of the cabinet or can be drawer-type openings to achieve drawer-type storage. The refrigerator in this embodiment of the present invention includes a refrigeration system, see [link to documentation]. Figure 3 The schematic diagram of the refrigeration system shown illustrates that the refrigeration system is located in the component storage cavity and provides power for the refrigerator's refrigeration cycle. It includes a compressor, evaporator, pressure reducer, and condenser. The storage space can be divided into multiple compartments, which, depending on their purpose, can be configured as a refrigerator compartment, freezer compartment, or variable temperature compartment (also known as a crisper compartment). In this embodiment of the invention, the compartments include at least a first compartment and a second compartment. For example, the first compartment is a freezer compartment 110, and the second compartment is a variable temperature compartment 120. A freezing aisle 130 is provided between the outer shell of the refrigerator and the inner wall of the compartment. See [reference needed]. Figure 4 The schematic diagram of the refrigeration aisle shows that an adjustable air outlet 112 is provided between the refrigeration aisle and the inner wall 111 of the refrigeration chamber 110. The cold energy generated by the refrigeration system is sent into the refrigeration chamber 110 through the adjustable air outlet 112 via the refrigeration aisle. A variable temperature air outlet 121 is provided between the refrigeration aisle and the variable temperature chamber 120. The cold energy generated by the refrigeration system is sent into the variable temperature chamber 120 through the variable temperature air outlet 121 via the refrigeration aisle.

[0020] An airflow control mechanism is configured for the adjustable air outlet 112 of the first room, exemplarily, see [reference needed]. Figure 5 and Figure 6The schematic diagram of the airflow control mechanism shown includes, but is not limited to, a stepper motor 1121, a drive gear 1122, and a damper 1123. Specifically, the stepper motor 1121 is fixed to the front or rear cover of the refrigeration duct; the drive gear 1122 is fixed to the rotating shaft of the stepper motor 1121 and meshes with a gear at one end of the damper 1123; the damper 1123 is hinged to the front cover of the refrigeration duct, and the stepper motor 1121 drives the damper 1123 to rotate through the drive gear 1122. By adjusting the angle A of the damper 1123, the airflow of the adjustable air outlet of the first compartment is controlled.

[0021] A temperature sensor 113 is installed in the freezer compartment 110 (first compartment). The temperature sensor 113 is located on the inner wall 111 of the freezer compartment 110, and the temperature probe of the temperature sensor 113 is exposed inside the freezer compartment 110 to detect the real-time freezing temperature of the freezer compartment.

[0022] See Figure 3 , Figure 3 This is a schematic diagram of the refrigeration system in a refrigerator provided in an embodiment of the present invention. The refrigeration system includes a compressor 1, a condenser 2, an anti-condensation pipe 3, a dryer filter 4, a pressure reducer 5, an evaporator 6, and a gas-liquid separator 7. The working process of the refrigeration system includes a compression process, a condensation process, a throttling process, and an evaporation process.

[0023] Among them, combined Figure 3 The compression process is as follows: When the refrigerator power cord is plugged in and the thermostat contacts are closed, compressor 1 starts working. Low-temperature, low-pressure refrigerant is drawn into compressor 1 and compressed into high-temperature, high-pressure superheated gas in the cylinder of compressor 1 before being discharged into condenser 2. The condensation process is as follows: The high-temperature, high-pressure refrigerant gas dissipates heat through condenser 2, and its temperature continuously decreases, gradually cooling into room-temperature, high-pressure saturated vapor, and further cooling into saturated liquid. The temperature no longer decreases; this temperature is called the condensation temperature. The pressure of the refrigerant remains almost constant throughout the condensation process. The throttling process is as follows: After condensation, the refrigerant... After the saturated liquid refrigerant is filtered to remove moisture and impurities by the dryer filter 4, it flows into the pressure reducer 5 (e.g., a capillary tube). Through this pressure reducer, the refrigerant becomes a room-temperature, low-pressure wet vapor. The evaporation process is as follows: the room-temperature, low-pressure wet vapor begins to absorb heat and vaporize in the evaporator 6, which not only lowers the temperature of the evaporator and its surroundings but also turns the refrigerant into a low-temperature, low-pressure gas. The refrigerant exiting the evaporator 6 passes through the gas-liquid separator 7 and returns to the compressor 1, repeating the above process. This transfers heat from inside the refrigerator to the outside air, achieving the purpose of refrigeration. For further information on the refrigerant flow, please refer to [link to relevant documentation]. Figure 7 As shown.

[0024] The refrigerator also includes a blower fan, which continuously draws air into the fins of the evaporator 6 for heat exchange. At the same time, the air cooled by the evaporator 6 after absorbing heat is sent to the freezer compartment 110 and the variable temperature compartment 120 through the freezing channel 130. This continuous circulation of air in the compartments achieves the purpose of lowering the temperature.

[0025] It is worth noting that in this embodiment of the invention, the first room and the second room share a single refrigeration system.

[0026] For example, the first compartment is a freezer compartment and the second compartment is a variable temperature compartment. The freezer compartment and the variable temperature compartment have roughly the same volume. Considering the cooling efficiency, the air volume of the freezer compartment and the variable temperature compartment are designed to be roughly the same, and their temperature drop rates are also roughly the same. As a result, when the set temperature of the variable temperature compartment is lower than that of the freezer compartment, for example, when the set temperature of the freezer compartment is significantly increased or the set temperature of the variable temperature compartment is significantly decreased, the variable temperature compartment requires more cooling capacity than the freezer compartment. Therefore, the freezer compartment and the variable temperature compartment cannot reach their corresponding set temperatures at the same time, resulting in an imbalance in cooling efficiency. Furthermore, in some special cases, such as when the variable temperature compartment is cooling, the freezer compartment is also cooling simultaneously, resulting in the actual temperature of the freezer compartment being lower than the set temperature.

[0027] To this end, the embodiments of the present invention provide the following control method. Specifically, the refrigerator further includes a controller (not shown in the figure). In the embodiments of the present invention, the controller is used to acquire a current first set temperature parameter and a current second set temperature parameter; wherein, the current first set temperature parameter is the current set temperature parameter of the first compartment, and the current second set temperature parameter is the current set temperature parameter of the second compartment; based on the preset relationship between the first set temperature parameter, the second set temperature parameter and the damper opening adjustment method, the current damper opening adjustment method is determined according to the current first set temperature parameter and the current second set temperature parameter; and the air volume control mechanism is controlled to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method.

[0028] For example, see Figure 8 , Figure 8 This is a first flowchart of the controller provided in an embodiment of the present invention, wherein the controller is used to execute steps S11 to S14: S11. Obtain the current first set temperature parameter and the current second set temperature parameter; wherein, the current first set temperature parameter is the current set temperature parameter of the first room, and the current second set temperature parameter is the current set temperature parameter of the second room; Specifically, each compartment is configured with a range of set temperature parameters. A set temperature parameter can be selected from the range of set temperature parameters for each compartment as the current set temperature parameter. For example, the first compartment is a freezer compartment and the second compartment is a variable temperature compartment. The set temperature parameter is the set temperature. The set temperature range of the freezer compartment is -24 degrees Celsius to -15 degrees Celsius, and the set temperature range of the variable temperature compartment is -20 degrees Celsius to 5 degrees Celsius. The set temperature adjustment step can be 1.

[0029] It is worth noting that the current first set temperature parameter and the current second set temperature parameter can be selected by the user through buttons, input through the display screen on the refrigerator, or communicated with the refrigerator through a mobile terminal (such as a mobile phone). The specific selection method is not limited to the above methods and will not be limited here.

[0030] S12. Obtain the relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method.

[0031] S13. Determine the current damper opening adjustment method based on the current first set temperature parameter and the current second set temperature parameter.

[0032] S14. Control the air volume control mechanism to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method.

[0033] For example, the relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method can be represented by a matrix table. By querying the matrix table based on the current first set temperature parameter and the current second set temperature parameter, the corresponding damper opening adjustment method can be determined. Then, the opening of the adjustable air outlet of the first chamber can be adjusted by controlling the air volume control mechanism.

[0034] In a preferred embodiment, the first compartment is a freezer compartment, the second compartment is a variable temperature compartment, and the freezer compartment and the variable temperature compartment share a single refrigeration system.

[0035] Specifically, the set temperature range of the variable temperature compartment is relatively wide, which can be higher or lower than the set temperature of the freezer compartment. When the freezer compartment and the variable temperature compartment share a refrigeration system, it is necessary to analyze the set temperatures of the two compartments and reasonably control the air outlet opening of the freezer compartment so that the temperatures of the two compartments can reach the corresponding set temperatures at the same time as much as possible.

[0036] Furthermore, the adjustable air outlet of the freezer compartment is the top-level air outlet. According to the simulated airflow effect of the freezer compartment, the air outlet area of ​​the top-level air outlet has the greatest impact on the freezer compartment temperature. This embodiment limits the airflow of the freezer compartment by controlling the air outlet area of ​​the top-level air outlet, so that the freezer compartment and the variable temperature compartment reach the set temperature simultaneously, thus taking into account the cooling effect of both the freezer compartment and the variable temperature compartment.

[0037] In a preferred embodiment, the refrigerator further includes a temperature sensor disposed in the freezer compartment for detecting the real-time freezing temperature of the freezer compartment; the step of controlling the airflow control mechanism to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method includes: when the refrigerator is first powered on, controlling the opening of the adjustable air outlet to a preset maximum opening; when the obtained real-time freezing temperature is less than or equal to the preset maximum freezing temperature, controlling the airflow control mechanism to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method.

[0038] For example, see Figure 9 , Figure 9 This is a second workflow diagram of the controller provided in an embodiment of the present invention, wherein the controller is used to execute steps S15~S18: S15. Obtain the refrigerator status and determine whether the refrigerator is powered on for the first time. If yes, proceed to step S16; otherwise, proceed to step S18.

[0039] S16. Control the opening of the adjustable air outlet to the preset maximum opening, and then proceed to step S17.

[0040] S17. Determine whether the obtained real-time freezing temperature is less than or equal to the preset maximum freezing value. If yes, proceed to step S18; otherwise, return to step S16.

[0041] S18. Control the air volume control mechanism to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method.

[0042] Specifically, since the food in the freezer compartment has high requirements for low temperature, the freezer compartment is usually cooled down first, and the temperature of the freezer compartment is lowered to the maximum allowable temperature (i.e., the preset maximum freezing value). For example, assuming that the set temperature range of the freezer compartment is -15 degrees Celsius to -24 degrees Celsius, when the refrigerator is first powered on, the opening of the adjustable air vent is first adjusted to the preset maximum opening until the real-time freezing temperature of the freezer compartment drops to -15 degrees Celsius, and then the opening of the adjustable air vent is adjusted according to the current air vent opening adjustment method.

[0043] Preferably, when the refrigerator is first opened, the opening of the adjustable air vent is controlled to the preset maximum opening. Only when the real-time freezing temperature is less than or equal to the preset maximum freezing value will the current air vent opening adjustment method be selected and executed.

[0044] In a preferred embodiment, the air volume control mechanism includes a stepper motor, a drive gear, and a damper. The stepper motor is used to drive the drive gear to rotate, thereby moving the damper baffle. The damper is located at the adjustable air outlet and is configured to move controllably between the position of opening the adjustable air outlet and the position of closing the adjustable air outlet in order to adjust the opening degree of the air outlet.

[0045] For example, the specific structure of the air volume control mechanism can be found in [reference needed]. Figure 5 and Figure 6 .

[0046] In a preferred embodiment, the first compartment is a freezer compartment, and the second compartment is a variable temperature compartment; the relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method is specifically the relationship between the freezer set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper baffle; wherein, the freezer set temperature parameter and the variable temperature set temperature parameter are independent variables, the rotation angle of the damper baffle is the dependent variable, and the rotation angle of the damper baffle is negatively correlated with the air outlet opening.

[0047] For example, assuming the first compartment is a freezer and the second compartment is a variable temperature compartment, the first set temperature parameter is the freezer set temperature level, and the second set temperature parameter is the variable temperature set temperature level. Each level has its corresponding set temperature. The damper opening adjustment method is the rotation angle of the damper baffle. The specific representation of the relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method is shown in the matrix table below; where the second column to the last column of the second row represents the freezer level (freezer set temperature level), the third row to the last row of the first column represents the variable temperature level (variable temperature set temperature level), and the other numbers are the rotation angles (unit: degrees) of the damper baffles corresponding to the freezer level and the variable temperature level.

[0048]

[0049] For example, when the temperature setting is -19 degrees Celsius and the freezing setting is -20 degrees Celsius, the corresponding damper baffle rotates at an angle of 39 degrees.

[0050] In one implementation, the controller is further configured to: Establish basic principles and, based on these principles, set the relationship between the freezing set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper; the basic principles include: When the set temperature corresponding to the freezing set temperature parameter decreases, the rotation angle of the damper gradually decreases. When the set temperature corresponding to the variable temperature setting parameter decreases, the rotation angle of the damper gradually increases. Upon initial power-on, the initial value of the rotation angle of the damper is a preset minimum angle; when the set temperature corresponding to the freezing set temperature parameter is a preset minimum freezing value, the rotation angle of the damper is the preset minimum angle. When the set temperature corresponding to the variable temperature setting parameter is the preset minimum variable temperature value and the set temperature corresponding to the freezing setting parameter is the preset maximum freezing value, the initial value of the rotation angle of the damper is the preset maximum angle.

[0051] For example: 1. When adjusting the freezer setting from -15℃ to -24℃, the cooling demand of the freezer increases. Therefore, by reducing the rotation angle of the damper, the adjustable air outlet opening of the freezer is increased, thereby increasing the airflow of the freezer. 2. When adjusting the variable temperature setting from 5℃ to -20℃, the cooling demand of the variable temperature compartment increases. Therefore, by increasing the rotation angle of the damper, the adjustable air outlet opening of the freezer is reduced, thereby increasing the airflow of the variable temperature compartment. 3. Boundary condition 1: Upon initial power-on, the freezer temperature is prioritized for cooling, so the initial value of angle A is 0. When the freezer temperature is at its lowest, the freezer prioritizes cooling, and the value of angle A is 0. 4. Boundary condition 2: When the variable temperature compartment is at -20℃ and the freezer is at -15℃, the cooling demand of the variable temperature compartment is the greatest. At this time, the damper completely covers the air outlet, A = 90°, which satisfies the cooling demand of the variable temperature compartment.

[0052] Further, see Figure 10 , Figure 10 This is a schematic diagram of a communication system provided in an embodiment of the present invention. The communication system includes a client 10, a router 20, a cloud server 30, and a refrigerator 40. The refrigerator 40 establishes a data connection with the client 10 through the router 20 or the cloud server 30. When the refrigerator 40 and the client 10 communicate through the router 20, the refrigerator 40 and the client 10 are relatively close, allowing the user to view the operation status or food storage status of the refrigerator placed in the kitchen from the living room or bedroom, and also to set the set temperature of each compartment of the refrigerator. When the refrigerator 40 and the client 10 communicate through the cloud server 30, the refrigerator 40 and the client 10 are relatively far apart, allowing the user to interact with the refrigerator 40 through an APP installed on the client 10, and also to remotely control the refrigerator.

[0053] Compared to existing technologies, the refrigerator disclosed in this invention obtains a current first set temperature parameter and a current second set temperature parameter, and determines the current damper opening adjustment method based on the preset relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method. The current first set temperature parameter is the current set temperature parameter of the first compartment, and the current second set temperature parameter is the current set temperature parameter of the second compartment. The airflow control mechanism adjusts the opening of the adjustable air outlet according to the current damper opening adjustment method. Therefore, the refrigerator and its control method of this invention can adjust the air outlet opening of one compartment based on the current set temperatures of the two compartments, thus maintaining a balance in cooling efficiency for different compartments under different cooling demands, and achieving the corresponding set temperatures as simultaneously as possible, thus having a wide range of applications.

[0054] See Figure 11 , Figure 11 This is a flowchart of a refrigerator control method provided in an embodiment of the present invention. The refrigerator control method described in this embodiment is implemented by a controller in the refrigerator; the method includes: S1. Obtain the current first set temperature parameter and the current second set temperature parameter; wherein, the current first set temperature parameter is the current set temperature parameter of the first compartment of the refrigerator, and the current second set temperature parameter is the current set temperature parameter of the second compartment of the refrigerator; S2. Based on the relationship between the preset first set temperature parameter, the second set temperature parameter and the damper opening adjustment method, determine the current damper opening adjustment method according to the current first set temperature parameter and the current second set temperature parameter; S3. According to the current damper opening adjustment method, the air volume control mechanism adjusts the opening of the adjustable air outlet of the first room.

[0055] In a preferred embodiment, the first compartment is a freezer compartment, and the second compartment is a variable temperature compartment, wherein the freezer compartment and the variable temperature compartment share a refrigeration system. In a preferred embodiment, the step of adjusting the opening of the adjustable air outlet of the first compartment according to the current damper opening adjustment method by controlling the air volume control mechanism includes: When the refrigerator is powered on for the first time, the opening of the adjustable air outlet is controlled to the preset maximum opening. When the real-time freezing temperature of the freezer is less than or equal to the preset maximum freezing value, the air volume control mechanism is controlled to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method.

[0056] In a preferred embodiment, the air volume control mechanism includes a stepper motor, a drive gear, and a damper. The stepper motor is used to drive the drive gear to rotate, thereby moving the damper baffle. The damper is located at the adjustable air outlet and is configured to move controllably between the position of opening the adjustable air outlet and the position of closing the adjustable air outlet in order to adjust the opening degree of the air outlet.

[0057] In a preferred embodiment, the first compartment is a freezer compartment, and the second compartment is a variable temperature compartment; the relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method is specifically the relationship between the freezer set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper baffle; wherein, the freezer set temperature parameter and the variable temperature set temperature parameter are independent variables, the rotation angle of the damper baffle is the dependent variable, and the rotation angle of the damper baffle is negatively correlated with the air outlet opening.

[0058] In a preferred embodiment, the method further includes: setting basic principles and setting the relationship between the freezing set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper baffle according to the basic principles; the basic principles include: When the set temperature corresponding to the freezing set temperature parameter decreases, the rotation angle of the damper gradually decreases. When the set temperature corresponding to the variable temperature setting parameter decreases, the rotation angle of the damper gradually increases. Upon initial power-on, the initial value of the rotation angle of the damper is a preset minimum angle; when the set temperature corresponding to the freezing set temperature parameter is a preset minimum freezing value, the rotation angle of the damper is the preset minimum angle. When the set temperature corresponding to the variable temperature setting parameter is the preset minimum variable temperature value and the set temperature corresponding to the freezing setting parameter is the preset maximum freezing value, the initial value of the rotation angle of the damper is the preset maximum angle.

[0059] Compared to existing technologies, the refrigerator control method disclosed in this invention obtains a current first set temperature parameter and a current second set temperature parameter, and determines the current damper opening adjustment method based on the preset relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method. The current first set temperature parameter is the current set temperature parameter of the first compartment, and the current second set temperature parameter is the current set temperature parameter of the second compartment. The airflow control mechanism adjusts the opening of the adjustable air outlet according to the current damper opening adjustment method. Therefore, the refrigerator and its control method of this invention can adjust the air outlet opening of one compartment based on the current set temperatures of the two compartments, thus maintaining a balance in cooling efficiency for different compartments under different cooling demands, and achieving the corresponding set temperatures as simultaneously as possible, thus having a wide range of applications.

[0060] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that, include: The enclosure has internal compartments, including at least a first compartment and a second compartment. The door is located at the opening of the room; A refrigeration system is used to provide cooling to the room; An adjustable air outlet is provided on the first compartment to deliver the cooling energy into the first compartment; Air volume control mechanism, used to adjust the opening of the air outlet; Controller, used for: Obtain the current first set temperature parameter and the current second set temperature parameter; wherein, the current first set temperature parameter is the current set temperature parameter of the first room, and the current second set temperature parameter is the current set temperature parameter of the second room; Based on the relationship between the preset first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method, the current damper opening adjustment method is determined according to the current first set temperature parameter and the current second set temperature parameter; The air volume control mechanism is controlled to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method. The first compartment is a freezer compartment, and the second compartment is a variable temperature compartment. The freezer compartment and the variable temperature compartment share a single refrigeration system. The first compartment is a freezer compartment, and the second compartment is a variable temperature compartment. The relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method is specifically the relationship between the freezer set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper baffle of the air outlet control mechanism. Among them, the freezer set temperature parameter and the variable temperature set temperature parameter are independent variables, the rotation angle of the damper baffle is the dependent variable, and the rotation angle of the damper baffle is negatively correlated with the air outlet opening. The controller is also used for: Establish basic principles and, based on these principles, set the relationship between the freezing set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper; the basic principles include: When the set temperature corresponding to the freezing set temperature parameter decreases, the rotation angle of the damper gradually decreases. When the set temperature corresponding to the variable temperature setting parameter decreases, the rotation angle of the damper gradually increases. Upon initial power-on, the initial value of the rotation angle of the damper is a preset minimum angle; when the set temperature corresponding to the freezing set temperature parameter is a preset minimum freezing value, the rotation angle of the damper is the preset minimum angle. When the set temperature corresponding to the variable temperature setting parameter is the preset minimum variable temperature value and the set temperature corresponding to the freezing setting parameter is the preset maximum freezing value, the initial value of the rotation angle of the damper is the preset maximum angle.

2. The refrigerator as described in claim 1, characterized in that, The refrigerator also includes a temperature sensor located in the freezer compartment for detecting the real-time freezing temperature of the freezer compartment; The step of controlling the air volume control mechanism to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method includes: When the refrigerator is powered on for the first time, the opening of the adjustable air outlet is controlled to the preset maximum opening. When the real-time freezing temperature is less than or equal to the preset maximum freezing value, the air volume control mechanism is controlled to adjust the opening of the adjustable air outlet according to the current damper opening adjustment method.

3. The refrigerator as described in claim 1 or 2, characterized in that, The air volume control mechanism includes a stepper motor, a drive gear, and a damper. The stepper motor is used to drive the drive gear to rotate, thereby moving the damper baffle. The damper is located at the adjustable air outlet and is configured to move controllably between the position of opening the adjustable air outlet and the position of closing the adjustable air outlet in order to adjust the opening degree of the air outlet.

4. A refrigerator control method, characterized in that, include: Obtain the current first set temperature parameter and the current second set temperature parameter; wherein, the current first set temperature parameter is the current set temperature parameter of the first compartment of the refrigerator, and the current second set temperature parameter is the current set temperature parameter of the second compartment of the refrigerator; Based on the relationship between the preset first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method, the current damper opening adjustment method is determined according to the current first set temperature parameter and the current second set temperature parameter; According to the current damper opening adjustment method, the air volume control mechanism adjusts the opening of the adjustable air outlet of the first chamber. The first room is a freezer room, and the second room is a variable temperature room. The freezer room and the variable temperature room share a refrigeration system. The first compartment is a freezer compartment, and the second compartment is a variable temperature compartment. The relationship between the first set temperature parameter, the second set temperature parameter, and the damper opening adjustment method is specifically the relationship between the freezer set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper baffle of the air outlet control mechanism. Among them, the freezer set temperature parameter and the variable temperature set temperature parameter are independent variables, the rotation angle of the damper baffle is the dependent variable, and the rotation angle of the damper baffle is negatively correlated with the air outlet opening. The method further includes: Establish basic principles and, based on these principles, set the relationship between the freezing set temperature parameter, the variable temperature set temperature parameter, and the rotation angle of the damper; the basic principles include: When the set temperature corresponding to the freezing set temperature parameter decreases, the rotation angle of the damper gradually decreases. When the set temperature corresponding to the variable temperature setting parameter decreases, the rotation angle of the damper gradually increases. Upon initial power-on, the initial value of the rotation angle of the damper is a preset minimum angle; when the set temperature corresponding to the freezing set temperature parameter is a preset minimum freezing value, the rotation angle of the damper is the preset minimum angle. When the set temperature corresponding to the variable temperature setting parameter is the preset minimum variable temperature value and the set temperature corresponding to the freezing setting parameter is the preset maximum freezing value, the initial value of the rotation angle of the damper is the preset maximum angle.

5. The refrigerator control method as described in claim 4, characterized in that, The first compartment is a freezer compartment, and the second compartment is a variable temperature compartment. The freezer compartment and the variable temperature compartment share a refrigeration system.

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